examples/help/simpletextviewer/mainwindow.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:43:10 +0200
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permissions -rw-r--r--
Revision: 201003 Kit: 201005
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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore/QLibraryInfo>
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#include <QtGui/QApplication>
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#include <QtGui/QAction>
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#include <QtGui/QMenu>
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#include <QtGui/QMenuBar>
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#include <QtGui/QMessageBox>
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#include "mainwindow.h"
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#include "findfiledialog.h"
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#include "assistant.h"
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#include "textedit.h"
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// ![0]
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MainWindow::MainWindow()
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{
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    assistant = new Assistant;
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// ![0]
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    textViewer = new TextEdit;
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    textViewer->setContents(QLibraryInfo::location(QLibraryInfo::ExamplesPath)
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            + QLatin1String("/help/simpletextviewer/documentation/intro.html"));
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    setCentralWidget(textViewer);
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    createActions();
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    createMenus();
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    setWindowTitle(tr("Simple Text Viewer"));
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    resize(750, 400);
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// ![1]
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}
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//! [1]
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//! [2]
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void MainWindow::closeEvent(QCloseEvent *)
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{
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    delete assistant;
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}
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//! [2]
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void MainWindow::about()
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{
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    QMessageBox::about(this, tr("About Simple Text Viewer"),
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                       tr("This example demonstrates how to use\n"
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                          "Qt Assistant as help system for your\n"
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                          "own application."));
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}
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//! [3]
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void MainWindow::showDocumentation()
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{
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    assistant->showDocumentation("index.html");    
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}
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//! [3]
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void MainWindow::open()
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{
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    FindFileDialog dialog(textViewer, assistant);
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    dialog.exec();
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}
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//! [4]
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void MainWindow::createActions()
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{
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    assistantAct = new QAction(tr("Help Contents"), this);
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    assistantAct->setShortcut(QKeySequence::HelpContents);
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    connect(assistantAct, SIGNAL(triggered()), this, SLOT(showDocumentation()));
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//! [4]
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    openAct = new QAction(tr("&Open..."), this);
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    openAct->setShortcut(QKeySequence::Open);
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    connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
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    clearAct = new QAction(tr("&Clear"), this);
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    clearAct->setShortcut(tr("Ctrl+C"));
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    connect(clearAct, SIGNAL(triggered()), textViewer, SLOT(clear()));
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    exitAct = new QAction(tr("E&xit"), this);
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    exitAct->setShortcuts(QKeySequence::Quit);
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    connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
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    aboutAct = new QAction(tr("&About"), this);
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    connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
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    aboutQtAct = new QAction(tr("About &Qt"), this);
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    connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
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//! [5]
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}
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//! [5]
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void MainWindow::createMenus()
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{
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    fileMenu = new QMenu(tr("&File"), this);
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    fileMenu->addAction(openAct);
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    fileMenu->addAction(clearAct);
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    fileMenu->addSeparator();
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    fileMenu->addAction(exitAct);
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    helpMenu = new QMenu(tr("&Help"), this);
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    helpMenu->addAction(assistantAct);
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    helpMenu->addSeparator();
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    helpMenu->addAction(aboutAct);
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    helpMenu->addAction(aboutQtAct);
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    menuBar()->addMenu(fileMenu);
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    menuBar()->addMenu(helpMenu);
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}